Alien Cube - CryENGINE 5.4.x - PAK

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
atom0s
Posts: 250
Joined: Sat Dec 27, 2014 8:49 pm

Alien Cube - CryENGINE 5.4.x - PAK

Post by atom0s »

Was contacted on Discord regarding this games .PAK files. Uses CryEngine so the main/default PAK usage is with an RSA key.

CryEngine is now open source which can be found on GitHub here:
https://github.com/CRYTEK/CRYENGINE

The RSA key is loaded inside of CrySystem now which is done here:
https://github.com/CRYTEK/CRYENGINE/blo ... .cpp#L1800

The key is still stored inside of CryGameSDK (Renamed from GameSDK/GameDLL when compiled for shipping) though here:
https://github.com/CRYTEK/CRYENGINE/blo ... p.cpp#L413

This games key is:

Code: Select all

30 81 89 02 81 81 00 A2 21 EF 5A 80 1F CB 1A ED
0B FB 79 8E 8A 3D C3 34 76 E4 24 95 3D 65 45 5F
C8 92 74 B1 83 CD 59 E4 53 64 35 39 B7 09 60 FD
80 9F BD 62 2B E4 F4 30 C3 9C 49 E8 50 88 B5 5A
39 BE 0E 07 63 85 2B D7 79 E3 37 41 20 09 2C 5E
81 72 BC FA 21 7B 1F C1 71 3A E2 66 62 CC 2B CD
57 6D 46 24 05 FE ED 86 6B 4E C9 E9 F9 3A B3 0D
4A EE F6 3C EA B4 A3 B2 A1 60 EC A3 93 D1 2A D4
82 78 2F E6 9C BF 2F 02 03 01 00 01


Attached is a modded PakDecrypt to decrypt the games PAK files.